By a News Reporter-Staff News Editor at Life Science Weekly -- Investigators publish new report on Gram-Positive Bacteria. According to news reporting from Zhejiang, People's Republic of China, by NewsRx journalists, research stated, "The exchange of tetrahydrofuran (THF)-containing wastewater should significantly affect the performance of an activated sludge system. In this study, the feasibility of using THF-degrading Rhodococcus sp. strain YYL to bioaugment an activated sludge system treating THF wastewater was explored."
The news correspondents obtained a quote from the research from Taizhou University, "As indicated by a DGGE analysis, strain YYL alone could not dominate the system, with the concentration of mixed liquor suspended solids (MLSS) decreasing to nearly half of the initial concentration after 45 d, and the microbial diversity was found to be significantly reduced. However, after the reactor was augmented with the mixed culture of strain YYL and two bacilli initially coexisting in the enriched isolation source, strain YYL quickly became dominant in the system and was incorporated into the activated sludge. The concentration of MLSS increased from 2.1 g/L to 7.3 g/L in 20 d, and the efficiency of THF removal from the system was remarkably improved. After the successful bioaugmentation, more than 95% of THF was completely removed from the wastewater when 20 mM THF was continuously loaded into the system."
According to the news reporters, the research concluded: "Our research first demonstrates that bioaugmentation of activated sludge system for THF degradation is feasible but that successful bioaugmentation should utilize a THF-degrading mixed culture as the inoculum, in which the two bacilli might help strain YYL colonize in activated sludge by co-aggregation."
For more information on this research see: Successful bioaugmentation of an activated sludge reactor with Rhodococcus sp YYL for efficient tetrahydrofuran degradation. Journal of Hazardous Materials, 2013;261():550-558. Journal of Hazardous Materials can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Journal of Hazardous Materials - www.elsevier.com/wps/product/cws_home/502691)
Our news journalists report that additional information may be obtained by contacting Y.L. Yao, Taizhou Univ, Sch Life Sci, Linhai 317000, Zhejiang, People's Republic of China. Additional authors for this research include Z.M. Lu, F.X. Zhu, H. Min and C.M. Bian (see also Gram-Positive Bacteria).
Keywords for this news article include: Asia, Zhejiang, Rhodococcus, Nocardiaceae, Actinomycetales, Gram-Positive Bacteria, People's Republic of China
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